net/chksum: move all chksum api declarations to common header
The following APIs need to be overriden by the arch after enabling
CONFIG_NET_ARCH_CHKSUM, move these functions to the common header
file to avoid prototype conflicts
uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
uint8_t proto, unsigned int iplen);
uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);
Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an
Xiang Xiao
parent
0de9e387a7
commit
4281acdb83
@ -619,6 +619,27 @@ int netdev_ifdown(FAR struct net_driver_s *dev);
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int netdev_carrier_on(FAR struct net_driver_s *dev);
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int netdev_carrier_off(FAR struct net_driver_s *dev);
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/****************************************************************************
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* Name: chksum
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*
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* Description:
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* Calculate the raw change sum over the memory region described by
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* data and len.
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*
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* Input Parameters:
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* sum - Partial calculations carried over from a previous call to
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* chksum(). This should be zero on the first time that check
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* sum is called.
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* data - Beginning of the data to include in the checksum.
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* len - Length of the data to include in the checksum.
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*
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* Returned Value:
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* The updated checksum value.
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*
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****************************************************************************/
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uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
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/****************************************************************************
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* Name: net_chksum
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*
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@ -647,6 +668,73 @@ int netdev_carrier_off(FAR struct net_driver_s *dev);
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uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
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/****************************************************************************
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* Name: ipv4_upperlayer_chksum
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*
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* Description:
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* Perform the checksum calculation over the IPv4, protocol headers, and
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* data payload as necessary.
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*
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* Input Parameters:
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* dev - The network driver instance. The packet data is in the d_buf
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* of the device.
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* proto - The protocol being supported
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*
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* Returned Value:
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* The calculated checksum
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
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#endif /* CONFIG_NET_IPv4 */
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/****************************************************************************
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* Name: ipv6_upperlayer_chksum
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*
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* Description:
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* Perform the checksum calculation over the IPv6, protocol headers, and
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* data payload as necessary.
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*
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* Input Parameters:
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* dev - The network driver instance. The packet data is in the d_buf
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* of the device.
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* proto - The protocol being supported
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* iplen - The size of the IPv6 header. This may be larger than
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* IPv6_HDRLEN the IPv6 header if IPv6 extension headers are
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* present.
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*
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* Returned Value:
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* The calculated checksum
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv6
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uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
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uint8_t proto, unsigned int iplen);
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#endif /* CONFIG_NET_IPv6 */
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/****************************************************************************
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* Name: ipv4_chksum
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*
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* Description:
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* Calculate the IPv4 header checksum of the packet header in d_buf.
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*
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* The IPv4 header checksum is the Internet checksum of the 20 bytes of
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* the IPv4 header.
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*
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* If CONFIG_NET_ARCH_CHKSUM is defined, then this function must be
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* provided by architecture-specific logic.
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*
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* Returned Value:
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* The IPv4 header checksum of the IPv4 header in the d_buf buffer.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);
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#endif /* CONFIG_NET_IPv4 */
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/****************************************************************************
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* Name: net_incr32
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*
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@ -28,6 +28,7 @@
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#include <nuttx/config.h>
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#include <nuttx/net/net.h>
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#include <nuttx/net/ip.h>
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#include <nuttx/net/netdev.h>
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/****************************************************************************
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* Public Types
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@ -191,53 +192,6 @@ uint8_t net_ipv6_mask2pref(FAR const uint16_t *mask);
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void net_ipv6_pref2mask(uint8_t preflen, net_ipv6addr_t mask);
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#endif
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/****************************************************************************
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* Name: chksum
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*
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* Description:
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* Calculate the raw change some over the memory region described by
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* data and len.
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*
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* Input Parameters:
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* sum - Partial calculations carried over from a previous call to chksum.
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* This should be zero on the first time that check sum is called.
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* data - Beginning of the data to include in the checksum.
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* len - Length of the data to include in the checksum.
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*
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* Returned Value:
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* The updated checksum value.
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*
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****************************************************************************/
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uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len);
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/****************************************************************************
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* Name: net_chksum
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*
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* Description:
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* Calculate the Internet checksum over a buffer.
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*
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* The Internet checksum is the one's complement of the one's complement
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* sum of all 16-bit words in the buffer.
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*
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* See RFC1071.
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*
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* If CONFIG_NET_ARCH_CHKSUM is defined, then this function must be
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* provided by architecture-specific logic.
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*
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* Input Parameters:
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*
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* buf - A pointer to the buffer over which the checksum is to be computed.
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*
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* len - Length of the buffer over which the checksum is to be computed.
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*
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* Returned Value:
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* The Internet checksum of the buffer.
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*
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****************************************************************************/
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uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
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/****************************************************************************
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* Name: net_chksum_adjust
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*
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@ -254,79 +208,13 @@ uint16_t net_chksum(FAR uint16_t *data, uint16_t len);
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*
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* Limitations:
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* The algorithm is applicable only for even offsets and even lengths.
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*
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****************************************************************************/
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void net_chksum_adjust(FAR uint16_t *chksum,
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FAR const uint16_t *optr, ssize_t olen,
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FAR const uint16_t *nptr, ssize_t nlen);
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/****************************************************************************
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* Name: ipv4_chksum
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*
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* Description:
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* Calculate the IPv4 header checksum of the packet header in d_buf.
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*
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* The IPv4 header checksum is the Internet checksum of the 20 bytes of
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* the IPv4 header.
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*
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* If CONFIG_NET_ARCH_CHKSUM is defined, then this function must be
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* provided by architecture-specific logic.
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*
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* Returned Value:
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* The IPv4 header checksum of the IPv4 header in the d_buf buffer.
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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uint16_t ipv4_chksum(FAR struct ipv4_hdr_s *ipv4);
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#endif
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/****************************************************************************
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* Name: ipv4_upperlayer_chksum
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*
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* Description:
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* Perform the checksum calcaultion over the IPv4, protocol headers, and
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* data payload as necessary.
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*
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* Input Parameters:
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* dev - The network driver instance. The packet data is in the d_buf
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* of the device.
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* proto - The protocol being supported
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*
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* Returned Value:
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* The calculated checksum
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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uint16_t ipv4_upperlayer_chksum(FAR struct net_driver_s *dev, uint8_t proto);
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#endif
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/****************************************************************************
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* Name: ipv6_upperlayer_chksum
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*
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* Description:
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* Perform the checksum calculation over the IPv6, protocol headers, and
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* data payload as necessary.
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*
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* Input Parameters:
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* dev - The network driver instance. The packet data is in the d_buf
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* of the device.
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* proto - The protocol being supported
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* iplen - The size of the IPv6 header. This may be larger than
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* IPv6_HDRLEN the IPv6 header if IPv6 extension headers are
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* present.
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*
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* Returned Value:
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* The calculated checksum
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv6
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uint16_t ipv6_upperlayer_chksum(FAR struct net_driver_s *dev,
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uint8_t proto, unsigned int iplen);
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#endif
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/****************************************************************************
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* Name: tcp_chksum, tcp_ipv4_chksum, and tcp_ipv6_chksum
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*
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